Machine for sewing beads to fabrics.



No. 630,196. Patented Aug. l, I899. H. A. DOMENGET.

MACHINE FOB SEWING BEADS T0 FABRICS.

(Application filed Mar. 26, 1898.) (No Model.) 3 Sheets-Sheet l.

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No. 630,196. Patented Aug. l, I899. H. A. DUMENGET.

MACHINE FOR SEWING BEADS T0 FABRICS.

(Application filed Mar. 26, 1898.) (No Model.) 3 Sheets-Sheet 2.

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'No. 630,l96. Patented Aug. I, 1899.

H. A. DOMENGET.

MACHINE FOR SEWING BEADS T0 FABRICS.

(Application filed. Mar, 26, 1898.)

(No Model.) 3 Sheets-Sheet 3.

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lln rnn STATES arnnr HENRI ANDRE DOMENGET, OF ARGENTEUIL, FRANCE.

MACl-HNE FOR SEWING BEADS TO FABRICS.

SPECIFICATION forming part of Letters Patent No. 630,196, dated August 1, 1899.

Original application filed Aprillo, 1897, Serial No. 631,550. Divided and this application tiled March 26, 1898. Serial No. 675,296. lNoinotlel.)

To n]! 1117112111 if 'llM/fl/ concern:

Be it known that I, HENRI ANDRE DOMEN- GET, a citizen of the Republic of France, residing at Argenteuil, France, have invented a certain new and useful Improvement in Machines for Sewing Beads to Fabrics; and I do hereby declare that the following is a full, clear, and exact description of the same.

This invention (for which Letters Patent have been applied for in Germany under date of May 3, 1897, and have been obtained in France, No. 264,567, dated March 2, 1897; in Great Britain, No. 10,281, dated April 24, 1897, and in Belgium, No. 128,718, dated May 22, 1897) relates to machines for sewing beads to fabrics, and although more particularly designed for sewing on beads which are loose on a thread it is quite suitable for also sewing on threaded beads which have been previously attached to their thread.

The present application is a subdivision of the case filed by me on April 10, 1897, Serial No. 631,550.

This invention consists of a bead-feeding device which causes a bead to move forward, together with its thread, at each stitch automatically and with certainty in such a manner as to effect a regular feed of the beaded thread to the guide and to the needle.

In the accompanying drawings I have shown a whole machine for sewing beads to fabrics, including the hereinbefore-described device, but I shall only describe in detail the said device.

Figure l is a front elevation of the machine with the plate that closes the front of the framing removed. Fig. 2 is a rear elevation of the machine, in which the receiver that contains the beaded thread is shown broken away in order to show the inside thereof. Fig. 3 is an end elevation of the machine. Fig. 4 shows a detail section on the line 4 4 of Fig. 3 as seen toward the left in that figure.

1 is the framing of the machine, and 2is the table thereof.

3 is the driving-pulley, mounted on the main shaft 4, to which motion is transmitted from the usual flywheel, which is not shown and which is operated by means of a treadle or of a motor. Upon the shaft 4 is arranged the usual clutch, whose position is indicated by 5, Fig. 1, and which enables the machine to be stopped and restarted at will by means of a trcadle or any other known device. On the main shaft 4 is secured a toothed wheel 6, Fig. l, gearing into a similar toothed wheel 7 on a second shaft 8, Fig. 2, mounted in bear ings 9 9. From these two shafts are derived the motions necessary for operating the various mechanisms and devices of the machine, as will be understood on referring to my application bearing Serial No. 631,550.

The device to be herein described comprises, essentially, a suitable receptacle 10, mounted on the framing 1 and containing the thread 1 1, upon which the beads are threaded. This thread, which is free in the receptacle, passes out at the upper part of the latter and after having passed over a small grooved guide-pulley 12 passes between two rollers 13 14, mounted, as is the guidepulley 12, in a small frame 15, fixed to the main frame 1 of the machine. The roller 14 is revolubly mounted in the frame 15, while the roller 13 is preferably mounted in the latter in any suitable or known manner, so as to exert an elastic pressure against the roller 14, and thereby grip gently between them and carry along the beaded thread 11, on which they are placed. The feed-rolls 13 and 14 are arranged, as shown and stated, above the needle-bar, with the contact-points of the rolls in the axial plane of the through-passage in the needle-bar, so that the beaded thread 11 then descends perpendicularly to the center of a plate 16 and passes in the central tube 17 in front of the needle-carrier 18 in order to reach an eye which guides it to the place at which it is to be sewed to the fabric. Upon the axis 19 of the roller 14 is secured a small chainwheel 20, over which passes an endless chain 21, which passes also over a chain-wheel 22, secured on one of the ends of a horizontal shaft 23, which is suitably carried in a frame 24, formed on the frame 1. On the other end of the shaft 23 is fixed a toothed wheel 25, in the recessed central part of which turns a ratchetwvheel 26, Fig. 2, secured on the shaft 23 and cooperating with a spring-pawl 27, pivoted in the recess of the wheel 25. The toothed wheel 25 gears into a toothed sector 28, formed on the end of a lever 29, pivoted at 30 on the frame 24: ?tlld the tail 31 of which carries a small roller 32, which works in the groove 33 of a cam 34, secured on the shaft 8. The arrangement is such that at each revolution of the shaft S-that is to say, at each stitch made by the machinethe sector 28 makes an oscillatorymovement about its axis 30 and by the intermediary of the pawl 27 and of the ratchet-wheel 26 causes the shaft 23 to rotate in the direction of the arrow at, Figs. 2 and 4, to an extent such'that the motion transmitted by the said shaft through the chain-wheel 22 and the chain 21 to the chain-wheel 20 and the roller 14 pulls the beaded thread 11 (whether the beads are loose or fast thereon) to the length of the stitch made by the machine-that is to say, to the amount of feed produced by the feeding device upon the fabric on which beads are being sewed.

A ratchet-wheel 35, Fig. 4, secured on the shaft 23 and cooperating with a spring-pawl 36, prevents the said shaft 23 from moving-in the opposite direction to that indicated by the arrows at.

It is obvious that instead of transmitting the motion of the shaft 23 to theroller 14 by means of chain-wheelsand a chain, as shown, the same result might be obtained by means of bevel-wheels and shafting, and my invention is not strictly limited in that respect to the arrangement shown here by way of example only for transmitting the motionof the said shaft to the said roller, what isessential being that the motion is transmitted in such a manner as to draw or pull at each stitch a length of beaded thread that is equal to the length of the stitch. It will further be understood that this length varies with the length of the head to be sewed on and that when once the machine has been adjusted to a determined length of head it is necessary in order to sew on beads of appreciably different length to proceed to adjust the stitch anew, and consequently to vary the amount through which the axis 23 turns ateachstitch. This may be done either by changing the cam 34, so as to vary the extent of oscillation of the sector 28 at each revolution of the shaft 8, or by any other suitable means.

The main ad vantage afforded by the hereindescribed device is that the beaded thread 11, being loosely contained in a receptacle 10instead of being wound upon a drum, as is the case in bead-sewing machines at present in existence, is not subjected to any appreciable tension between thepoint at which the beaded thread leaves the receptacle and the bight of the rollers 13 14:. Furthermore, after the beaded thread has passed between the rollers 13 14'it is absolutely loose and is supplied in such loose state to the sewingdevice.

I claim 1. In a sewing-machine such as described, the combination with the stitch-forming appliances comprising a reciprocating needlebar having a through-passage for the string of beads, a receptacle in which said stringis coiled, feed-rolls located above said needlebar with their contact-points in line with the passage in the needlebar, and means for guiding the string of beads to said rolls; of mechanism controlled by a revolving element of the machine and imparting to one of the feed-rolls a progressive rotation the steps of which correspond with the length of the beads on the string of such, forthe purpose set forth.

2. In a sewing-machine such as described, a receptacle in which the string of heads is loosely coiled, feed mechanism comprising a pair of feed-rolls, the shaft 8, the cam-grooved sleeve 34 thereon, the toothed lever 29 operated by said cam, the feed-shaft 23, the gearwheel 25 loose thereon, a pawl pivoted to said wheel, the ratchet-wheel 26 fast on the feedshaft-and engaged by the pawl, and means for transmitting the step-by-step movement imparted to said feed-shaft to one of the aforesaid feed-rolls,substantially as and for the purpose set forth.

In witness whereof I have hereunto set my hand in presence of two subscribing witnesses.

HENRI ANDRE DOMENGET.

Witnesses:

R. H. BRANDON, D. H. BRANDON. 

